I've used XML-sitemaps successfully in the past. But now I have big problems. Here's the history:I wanted to update my site map so I logged on to Google webmaster tools and deleted my old site map.Then I created a new site map with XML-sitemaps.com. I could view the code when I hit the link so I uploaded the sitemap to my web host server then went back to Google webmaster and uploaded new sitemap, but Google says, Error! I got a 404 Error, page not found. How odd. How can that be?